NETZTEIL ZUR ERZEUGUNG EINER GEREGELTEN GLEICHSPANNUNG.

摘要

A semiconductor switch (13) is connected in parallel across the rectifier (11) output, and is switched on in response to the difference between a reference voltage (U1) and the output voltage of the rectifier. If the output is lower than the reference the switch (13) is closed and the rectifier short circuited. The switch is opened again when the output voltage (Ua) of the power supply is lower than a second reference (U2). The devices (16,19) activated by the error voltages are typically.Schmitt triggers which act on an RS flip flop (17) to switch the semiconductor (13) on and off. The semiconductor is typically a transistor. The rectifier short circuit current is limited by a resistor (8) on the supply side. The switch (13) operates in the blocked state or the saturated state.